Diffusion of oxygen (O₂)and carbon dioxide (CO₂)occurs in the: A) pulmonary capillaries. B) pulmonary vein. C) bronchioles. D) cilia. E) pulmonary artery.

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Diffusion of oxygen and carbon dioxide occurs in the pulmonary capillaries, specifically at the alveoli, where the exchange of gases takes place between the air in the lungs and the blood in the capillaries. The bronchioles and cilia play a role in the movement of air in and out of the lungs, while the pulmonary vein and artery are responsible for transporting the oxygen-rich and oxygen-poor blood, respectively.

Diffusion of Oxygen (O2)and Carbon Dioxide (CO2)occurs in The

Diffusion of Oxygen (O₂)and Carbon Dioxide (CO₂)occurs in The